Windows XAML: Replacement for WPF TextBox's CharacterCasing

Question

I have a TextBox that whenever a user types into it I want the text to only be uppercase. For example, if I type in "abc" the actual text in the TextBox and in the backend binding should be "ABC".

In WPF there is the CharacterCasing property, but I can't seem to find that in Windows XAML (or whatever you call a Windows 8 app).

I tried making a converter, but that didn't seem to work:

Converter:

 public class UpperCaseConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, string language)
    {
        return value.ToString().ToUpper();
    }

    public object ConvertBack(object value, Type targetType, object parameter, string language)
    {
        return value.ToString().ToUpper();
    }
}

XAML:

<TextBox Text="{Binding ElementName=uiMainPage, Path=Company, Mode=TwoWay, Converter={StaticResource ToUpper}}"/>

Answer 1

This is the code I made for it in VB.Net but it should be easy to translate to C#

Make a textchanged event for your textboxes and call a method giving it your sender as a textbox

Private Sub AnyTextBox_TextChanged(sender As Object, e As TextChangedEventArgs) 
    TextBoxToChange = (CType(sender,Textbox))
    TextBoxToChange.Text = TextBoxToChange.Text.ToUpper()
    TextBoxToChange.SelectionStart = TextBoxToChange.Text.Length
End Sub

The TextChanged event takes the textbox and changes the text to uppercase (The selectionstart is to stop the selection of the textbox to go back to 0 which causes to write backwards )

You will have XAML looking like this

<TextBox x:Name="txtTest1"
         TextChanged="AnyTextBox_TextChanged"/>

<TextBox x:Name="txtTest2"
         TextChanged="AnyTextBox_TextChanged"/>

It is not exactly a converter as you wish but it will do the trick just fine and this will only be 1 method per page